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Hennessey Unleashes the 705hp Corvette ZR700

by Keith Cornett on January 30, 2009

For some the 2009 Corvette ZR1′s 638 horsepower is simply not enough. Hennessey Performance solves that problem with their latest creation, the Corvette ZR700. An extensive list of bolt-ons and a custom tune unleash the fury of the ZR1 by boosting horsepower to 705 and torque to 717lb-ft. The numbers are awe-inspiring.

Hennessey’s Corvette ZR700 rips through the quarter mile in 11.03 seconds at 136 mph. 0-60 mph was timed at 3.1 seconds and 0-150 mph was 13.9 seconds. The estimated top speed is 212 mph.

To squeeze the extra performance out of the Corvette ZR1′s LS9, Hennessey increases the supercharger boost from 11psi to 14psi and then adds a K&N air filter, stainless steel headers, high flow catalytic converters, upgrades the intercooler system and finishes up with a dyno test and tune session.
Watch the Corvette ZR700′s quarter mile run at Lonestar Motorsports Park:

If the 705 hp ZR700 isn’t enough for you, Hennessey adds even more upgrades and goes into the engine with high flow cylinder heads and an agressive cam shaft that boosts horsepower to an astonishing 755.

Charles D. Fowler, III: I stopped subsribing to both after many years, and within a year or two of even having a “feature” article accepted and published, after meeting Corvette Fever execs at Carlisle. With the merger, I...

Jeff McKay: I also asked a local dealer and they knew nothing about it. How do I order it myself? I think that would be faster than trying to convince them they should know about it.

CrystalKnight: I have always loved the 63, one of my favorite classics of all time, and I have had a many sports cars…, owned and loved the C5 even though it was heavy and underpowered, owned and loved the C6 convertible. ….I...

CrystalKnight: I have always loved the 63, one of my favorite classics of all time, and I have had a many sports cars…, owned and loved the C5 even though it was heavy and underpowered, owned and loved the C6 convertible. ….I...

tonyman262: I have an 89 C4 & an 07 C6, both white. After seeing the CUE system; the daughter may get the 07, I NEED a C7 with the CUE system. The 89 C4 stays with me. The C7 (artic white of course) could just end up being the new...